Industrial News
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The Strip Width Deviation Affects the Quality of Welded Steel Pipe
Frequency welded pipe production process, affecting the quality of the elements have more than one pipe, the main raw materials, welding technology and roll count which is beginning to adjust. Key to look at raw geometric dimensions. Strip geometry affect the quality of the steel strip wid...Read more -
Deformation Strengthening of High-pressure Alloy Pipe
High-pressure alloy pipe deformation strengthening is using the method of deformation of steel reinforcement. Also known as the strain hardening or work hardening. The strength of the material at the macro (or a whole) the ability to resist deformation (or flow stress). Hardness is the ability of...Read more -
Reduction of Nb Steel Surface Cracks and Prevention Measures
Transverse cracks will affect the finished product rate just after rolling. Increase billet cleanup time, both great harm. The slab temperature is brittle zone of 700-900 ℃. The reason the lower surface cracks is 1050-1100 ℃, transverse cracks on the surface of the reason is the billet surface by...Read more -
Precision Tube length Measurement Method
According to the technological requirements of different manufacturers, precision tubes length measurement systems with a variety of length measurement methods. There are the following: 1, The grating length measurement The basic principle is: the outer ends of precision tubes are provided two fi...Read more -
ERW oil casing application and market analysis
In the field of oil drilling and oil well, high-frequency electric resistance welded casing (referred to as ERW casing) compared with seamless casing is high dimensional accuracy, weld toughness, anti-extrusion of high-performance, and low cost advantages, which has been widely used in foreign co...Read more -
Large-diameter LSAW Steel Pipe Production Process
Large-diameter LSAW steel pipe production process mainly explained: 1. plate probe: used to manufacture large diameter submerged arc welded steel pipe joints straight after entering the production line, the first full-board ultrasonic testing; 2. Milling: Milling machine through the two-sided edg...Read more
